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/* 2. m/t w/o body , must declare abs. */
public class H02 {
void start();
}
//missing method body, or declare abstract void start();
/* 3. m/t w/o body with abs keyword. */
public class H02 {
abstract void start();
}
// H02 is not abstract and does not override abstract method start() in H02
/* 4. both cls. and its m/t are abs. : WORKS FINE */
abstract public class H02 {
abstract void start();
}
/* 5. i/h pt abs. m/t w/o creating its body. */
abstract public class H02 {
abstract void start();
}
class car extends H02 {
}
// car is not abstract and does not override abstract method start() in H02
/* 6. i/h pt abs. m/t and create its body. */
abstract public class H02 {
abstract void start();
}
class car extends H02 {
void start(){
System.out.println("starts with key");
}
}
class scoters extends H02 {
void start(){
System.out.println("starts with kick");
}
public static void main(String[] args) {
}
}
/* 7. make abs class obj in main m/t. */
abstract public class H02 {
abstract void start();
}
class car extends H02 {
void start(){
System.out.println("starts with key");
}
}
class scoters extends H02 {
void start(){
System.out.println("starts with kick");
}
public static void main(String[] args) {
H02 t = new H02();
}
}
// H02 is abstract; cannot be instantiated
/* 8. make obj. of cld cls and then use abs m/t. */
abstract public class H02 {
abstract void start();
}
class car extends H02 {//1
void start(){
System.out.println("starts with key");
}
}
class scoters extends H02 {//2
void start(){
System.out.println("starts with kick");
}
public static void main(String[] args) {
car c1 = new car();//1
c1.start();
scoters s1 = new scoters();//2
s1.start();
}
}
// starts with key
// starts with kick
